Datenblatt-pdf.com


I3G4250D Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer I3G4250D
Beschreibung MEMS motion sensor
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 30 Seiten
I3G4250D Datasheet, Funktion
I3G4250D
/*$ [[PP 
Features
Wide supply voltage: 2.4 V to 3.6 V
Selectable full scale (245/500/2000 dps)
I2C/SPI digital output interface
16-bit rate value data output
8-bit temperature data output
Two digital output lines (interrupt and data
ready)
Integrated low- and high-pass filters with user-
selectable bandwidth
Ultra-stable over temperature and time
Low-voltage-compatible IOs (1.8 V)
Embedded power-down and sleep mode
Embedded temperature sensor
Embedded FIFO
High shock survivability
Extended operating temperature range
(-40 °C to +85 °C)
ECOPACK®, RoHS and “Green” compliant
MEMS motion sensor:
3-axis digital output gyroscope
Datasheet - production data
Applications
Industrial applications
Navigation systems and telematics
Motion control with MMI (man-machine
interface)
Appliances and robotics
Description
The I3G4250D is a low-power 3-axis angular rate
sensor able to provide unprecedented stability at
zero-rate level and sensitivity over temperature
and time. It includes a sensing element and an IC
interface capable of providing the measured
angular rate to the application through a standard
SPI digital interface. An I2C compatible interface
is also available.
The sensing element is manufactured using a
dedicated micromachining process developed by
STMicroelectronics to produce inertial sensors
and actuators on silicon wafers.
The IC interface is manufactured using a CMOS
process that allows a high level of integration to
design a dedicated circuit which is trimmed to
better match the characteristics of the sensing
element.
The I3G4250D has a selectable full scale
245500/±2000 dps) and is capable of
measuring rates with a user-selectable
bandwidth.
The I3G4250D is available in a plastic land grid
array (LGA) package and can operate within a
temperature range of -40 °C to +85 °C.
Order code
I3G4250D
I3G4250DTR
Table 1. Device summary
Temperature range (°C)
Package
-40 to +85
-40 to +85
LGA-16 (4x4x1.1 mm3)
LGA-16 (4x4x1.1 mm3)
Packing
Tray
Tape and reel
April 2015
This is information on a product in full production.
DocID027628 Rev 2
1/43
www.st.com






I3G4250D Datasheet, Funktion
List of figures
List of figures
I3G4250D
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
I3G4250D external low-pass filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SPI slave timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
I2C slave timing diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FIFO access sequence in asynchronous mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
I3G4250D electrical connections and external component values . . . . . . . . . . . . . . . . . . . 20
Read and write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SPI read protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Multiple byte SPI read protocol (2-byte example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SPI write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Multiple byte SPI write protocol (2-byte example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SPI read protocol in 3-wire mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
INT1_Sel and Out_Sel configuration block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Wait disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Wait enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
LGA-16 package outline and mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6/43 DocID027628 Rev 2

6 Page









I3G4250D pdf, datenblatt
Mechanical and electrical characteristics
I3G4250D
2.4
2.4.1
Communication interface characteristics
SPI - serial peripheral interface
Subject to general operating conditions for Vdd and Top.
Symbol
Table 7. SPI slave timing values
Parameter
Value(1)
Min.
Max.
Unit
tc(SPC)
SPI clock cycle
100 ns
fc(SPC)
SPI clock frequency
10 MHz
tsu(CS)
CS setup time
5
th(CS)
CS hold time
8
tsu(SI)
SDI input setup time
5
th(SI)
SDI input hold time
15 ns
tv(SO)
SDO valid output time
50
th(SO)
SDO output hold time
6
tdis(SO)
SDO output disable time
50
1. Values are guaranteed at 10 MHz clock frequency for SPI with both 4 and 3 wires, based on characterization results; not
tested in production.
Figure 4. SPI slave timing diagram
&6  
63&  
WVX &6
6',  
6'2  
WF 63&
WVX 6,
WK 6,
06%,1
WY 62
06%287
WK 62
WK &6


/6%,1

WGLV 62
/6%287

Note:
Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both input and output
ports.
12/43
DocID027628 Rev 2

12 Page





SeitenGesamt 30 Seiten
PDF Download[ I3G4250D Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
I3G4250DMEMS motion sensorSTMicroelectronics
STMicroelectronics

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche